Printer&#39;s chase.



H. W. WLSON.

PRNTERS CHASE.

APPLfcATumx man MAY 4. 19m.

FIQE;

HALSEY "W, WILSON, OF MINNEAPOLIS, MINNESOTA.

PRINTERS CHASE.

Lenssen.

Application filed May 4, 1910.

To all whomz't may concern.'

Be it known that I, Hanser W'. lViLsoN, of Minneapolis, Hennepin county, Minnesota, have invented certain new and useful Improvements in Printers7 Chases, of which the following is a specication.

The object oi the invention is to provide a chase wherein the tops or heads of the pages on one side of the sheet may be adjusted in perfect register and uniform margins with the pages on the other side of the sheet without the necessity of adjusting the top to the extent that is usually required in chases as ordinarily formed. Generally in the old style of printers book chase the quoins are pla-ced around the outside and pressure is toward the center of the chase from the four sides, bars being used only to stiften the chase and support the type in the center and keep it from falling out when the chase Vis moved and prevent the side bars from bendincr.

2lonsiderable difficulty has been vexperienced with the old form of chase, as it was absolutely necessary that every page should be of exactly the same length and it was found that when `the forms were locked up, particularly it wood :furniture was used, that there would be quite a little compression in the form and the heads or' the pages would be found to be out of alinement with one another.

My invention consists generally, therefore, in a chase having cross bars, the edges of which form seats for the heads of the pages of type, and when these heads are once set against the bars it is immaterial it' some of the pages of type are shorter than others. A suitable amount of furniture will be used for the short pages, but the heads of the pages will constantly remain in alineinent and the pages on opposite sides of the sheet will register perfectly with one another.

In the accompanying drawings forming part of this specification,

Figure l is a plan view of a chase embodying my invention,

Fig. 2 is a modied construction in which the cross bars are divided longitudinally, forming a comparatively large middle chase, and smaller ones on each side thereof.

In the drawing, 2 represents the side rails of the chase and 3 the end rails, all of metal. at and 5 are cross bars iitting wit-hin dovetailed notches 6 and 7, which are arranged Specification of Letters Patent.

Patented May 14, 1918.

Serial No. 5525,383.

in pairs on each side of the middle portion of the chase. These dovetail notches coperate with the cross bars to prevent -the side rails from spreading in a comparatively large chase adapted for receiving sixteen or thirty-two pages, where the side rail is from #l2 to 60 inches in length and seldom` if ever, less than 38 inches. rllhis type of chase is used on a cylinder press in 'book or maga- Zine work and it is quite important `to have the side rails locked in parallelvrelation to one another.y I am able to accomplish this b v means of the cross bars and at the same time these bars fix the position of the heads of the pages in the form. 8 and 8 represent pages of' type, the former full length pages and the latter short pages. The heads of all the pages are, as shown, seated against the edges of the bars 4 and 9 and 10 are pieces of 'furniture and 1l locking quoins interposed between the pieces of furniture and forcing the pages against the edges of the bars. The short pages have an additional piece of furniture 12, and at the sides of the chase furniture 13 and 14 is employed and between the pages suitable pieces 15 and 16 are arranged. The space between the bars et and 5 is sufficient to accomodate two rows of pages, each having its head bearing on the inner edges of the bars and held in contact therewith by the quoins. Furniture strips 17 are interposed between the bars and the heads of the pages to provide a margin of the desired width. These strips can, of course, be varied, according to the margin desired. The distance between the bars is preferably twice the distance between the bars and the contiguous end of the chase and as the chase is prefen ably made of such size to accommodate four pages in a row, it follows that sixteen pages may be printed on one side of a sheet of paper, such as is usually used in book work, and the heads of all these pages, owing to the method of locking them outwardly againstthe bars instead of toward the center of the chase, will be in perfect alinement with one another across the chase and when the other side of the sheet is printed, its pages will register perfectly with those first printed on the sheet. The adjustment of the bars in the dovetailed slots 6 and 7 adapts the chase for variation inthe standard sizes of bool; paper, and compensation may be made for the desired variation in the margins at the heads of the pages, as

before stated, but the strips of furniture placed at the heads, being of uniform width, will not aiect in any Way the register ci the opposite pages.

The bars e and 5 are normally stationary, the heads of all the pages of type are seated against the longitudinal edges of these bars7 consequently the heads of all the pages in the saine row Will be in perfect alineinent With one another regardless of the length or' the page, and When these pages are removed from the chase and others substituted, if the substituted pages are also seated against the longitudinal edges of the bars with the furniture l5 and 16 between the pages, it must also be evident that when the sheet of sixteen pages is printed on both sides the 0pi posite pages will be in perfect register with one another, and no accurate adjustment or measuring or fitting will be required.

In Fig. 2 have shown a modiied construction which consists in forming the chase in three partsa iniddle chase 1S and side chases 19 which, when assembled, form one of the size shown in Fig. l and having the saine functions, the pages being locked in alinernent With one another at the top and in perfect register. This chase, however, can be handled easier than the other forni, as the parts are separable. ain thus able to obtain an accurate register of the pages cn the opposite sides of the sheet and perfect alineinent of the heads of the pages and practically no adjustment or fitting is i,eee,see

required to assemble the pages and lock them in the forni.

I claim as my invention Means for laying out and locking-up typepage forms for printing comprising a bookchase consisting of a traine having parallel sides and parallel end members, and stilip bars rigidly tying 'one side of the frame to the opposite side and dividing the space enibraced Within the four outside members of the chase into divisions separated from each other by the cross bars so disposed that the heads of the type-pages will lie next to the cross bar separating one. division from the other and permit the insertion of locking means at the feet of the type-pages, With some of the lacking means inserted `between the frame and feet of the type-pages and others between the adjacent feet of typepages placed end to end, and additional locking means between the sides of the typepages and side of the traine, to press the heads of tivo type-pages each toward the other and also press the several type-pages from one side of the frame toward the opposite side.

n Witness whereof, Ihave hereunto set my hand this twenty-third day of April, 1910.

HALSEY W. VLSON.

Witnesses L( S. "lnnsnarai, H. B. BAILLIE.

Copiers et thi-a patent may be obtained for :five cents each, by aressing the Commissioner of Patente,

Washington, El 

